Erank dutches



Patented Aug; 16, 1921.

F. BUTCHER.

WINDOW CONSTRUCTION. APPLICATION man 1l1LY22,1 92o.

ante/vulva FraflkDuZc/zer MA /615M014;

UNITED, A ES.

"PATENT OFFICE.

FRANK BUTCHER, or PHILADELPHIA, PENNSYLVANIA;

WINDOW CONSTRUCTION.

.To all whom z'tmay concern:

Be it known, that FRA K B TCHER, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania has invented certain new and useful Improvements in Window Constructions, of which the fol-I lowing is a specification. I

Tlns invention relates to window construction, and has for its primaryobject to provide an ehiciently operating arrangement of a pair of self-balancing sashes in the win- {dow frame-whereby thenecessity of employin the usual sash weight maybe avoided.

1 in the present improvement'l' propose to employ chains or equivalent non-stretchable,

1 though flexible, elements for operatively connectinglthe sashes} to eachother at one of 'their'ends which (are slidably mounted in the frame, thesa'shes being hingedlyconnected to each other at their other end, and

means for automatically, adjusting the" the frame whereby binding of the chains will be entirely obviated while at the same time 'dow'frame and equipped with either single or double weather stripping for the sashes.

Generally, the invention comprehends a single pair of window sashes-which? may be easily and quickly adjusted in unison to Pmvide ventilate-11m th the bott m and top of the window, andprovides means whereby] the sashes .will be securely retained in their closed, 'positions against accidental opening movement by strong air draftsor from other, causes. I I 7 And finally, it is my purpose'to materially simplify windowvconstruction of the above type and thereby enable the same to be con- "Selected and. i e l d -;at comparatively the present invention consists in theprovi- ,sion of a window construction ascharacterized, and infthe I improved "combination ,and arrangement of the; several parts thereof to be hereinafter moreffully described, illus small cost and maintained inoperative condition without requiring frequentandmorev V c i i I provided w1th stoplstrips, as shown in dotted lines in 3, between whichithe upper sash is engaged when in its closed positioni or less expensiverepairs. ,7 1

With the above and othervob ects in view,

Specification of Letters Patent. Patented A 16: 1921 h 7' Application filed July 22 i 1920. Serial K0 398 233. p

trated in the accompanying drawing, and. incorporated in the subjoined' tion i c. M Fig. 2 a vertical section through the window'frame, the sashes being removed therefrom; a v l I Fig. 3 is an' enlarged vertical section through the top of the "window frame, showing the sash in dotted lines and illustrating the guide means for the sash chain.

Fig. 4: is a transverse'horizontal section through one s de of the window frame and sash taken on the line 4 -4 of Fig. 3.

Fig. 5 is afsimilar view illustrating a modified form of the slid nglpivot'member for the sash used in connectionwith double weather-stripping.

6 is a' detail vertical section illustrating the operation ofthe latter form of the invention, and k Fig; 7 is .a detail perspective view of the slide member shown in F 5. l

Referring now more-particularly to Figs. 1 to 4 inclusive of the drawing, 5 designates vthe window frame which includes the usual top rail 6 and the bottom sill'7 connected by the vertical side bars or jambs 8; The latter are provided in their inner faces with jthe parallel longltudinally extending groovesor lines in an open posichannels 9 and 9, respectively, which extend substantially. the entire length ofthe frame,

as clearly shown inFigp2'of thedrawing. 1 The upper andlower sashes designated'IO {and 11,1'espectively; have their meeting rails hingedly connected at the inner sides thereof'as at 12, and wheirthese' sashes are in closed position 'within' the window frame they areldisposed infa common vertical plane; The top i-ailG ofthefframe may be the form of a hollow' metal block of.

elongated rectangular shape and isprovided cylindrical pin or trunnion 14C. The upper end of the upper sash and the'lower'end" of the lower sash 11 are each provided inthe vertical stiles thereof with. sockets, indicated slide members.

at 15 to receive the trunnions 1 1, whereby it will be understood thatthekahesare connected to the slide members for swinging or pivotal movement'with respect thereto.

is lo frame communlcate with each other at the centers of the jambs8, as shown'at 16 and 17 1are disposed for the up er' oraon of vertically spaced sheaves or pulleys 18 which guide the lower portions or" the chains in the grooves 9. The lower endsof the chains have fixed connections to" the slide members 13 for the lower sash. At their iipperlendsf the chains extend throughopenings 19' in the top railof the window' frame" through which they are guided by thewh eels 20,fand" then pass around the pulleys or s h'eaves' 21 journaled in' thehousings 22 secured to the frame. The extremities of the cha insare connected to the upper ends of rods 23 which are vertically movable through the hollow blocks ot'the'slide members 13 to which the upper sash is pivoted. The move;

springs may be properly regulated.

upper sashwill move downwardly in the with respect to the frame as seen in Fig.

. yieldableconnections between the chains and the upper sash eliminate all possibility of 1 of the drawing.

slide members 13 gradually move apart and the hinge 12 approaches at position ini line Q with the pivot trunnions 14 in the closing movement of the sashes, the chains-17 will pull upon the rods 23 and thereby compress thesprings 24. It will thus be seen that the binding oi the chainsduring the opening or This ventilation will be had at both the top and bottom of the winmore, the sashes will be held tightly closed against strong airdraft-s from, within the room when they are not positively locked, or prevented from accidental opening movement through other causes. In other words,

' the chains will at all times be held perfectly referred to, a single' weather strip" 26 is see in the grooves 9" the'sash' coni'iecting 'cha'ins 1' h g inner sides of the sashesfandthe trunnions their length. These chains pass,'around the cured to each" of ,the' frame ja'mbs at the' 'lt are "arranged m m with the grooves 9. However, when doublewe'ather stripping is "u sed"thistairangeinent' of the" trunnions is not'jpeririissible. In such case the grooves r 9 9 are not p'rovidedslide members of theform shown {in Figs. 5 and 7 {are employeds- Each sli cle -meinberconsists of a chafinel sliaped casting '27-"having a flange 28 extending laterally 'fromone edge thereof and"carryingflatits upper end the-pivot pin or trunnion 29. To thesash stile'a wear plate is secur d and] is pro'videdi with an opens "ing31 coincidingwiththe sohket in the Stile to receive the truniiion. The channel casting slidesflbetween the longitudinal"stop32 fixed "in the name amband the guide cle at 33 sement of these rods under the pull of" the chains is yieldingly resisted by the springs 2 1 surrounding the lower ends of therods and bearing at their upper ends against the I By adjusting the nuts 25, threaded'upon the rods 23 the tension of the",

cured upon the inner taceof the jamb. The

A second of the sash stilefand coacts wi ththe stop 32 when the sash is'cl'osed; Itivill'be noted that the pivot or trunnion 29in this construction From the above description, it will be understood that when the hingedly connected sash rails are forced outwardly and the lower sash raised, the upper end of the 3 1. Thus it will be? apparenflthatfwhen' the sash is is wung' to fopen" position, as in I Fig. I

GI'thestrip-St'will freely clear the stop 32 and" will not bind thereon.

In both ot" the constructions" above described the trunnion-receiving sockets "in' the "sash stilesin'ay' be provided with fiberwearresistingdinings if desired, which will also render the device "noiseless in its operation. The slidemeinberse'i for theupper sash are provided at the outer sides oli their channelshaped portions, and at the"1ipper andjlower I ends thereof, with thedmvardly"projecting respect to the frame will be uniform as they move to a perpendicular position. As the apfertiired lugs" 35: '1 to receive the yieldalole chain-connecting rods 23 above referred to.

It'will of course be understo ed that the chain extends throu h the channel portion of "the .facto'nilyiised in connection plurality V r of pairs'ojf sashes, suchfor instance-asare closing movements of the sashes. F urtherillustrated, described, and claimed in Patent N 0. 1,281,312, granted to me on October 15, 1918. Also it is to be understood that the present improvement is not to be limited to the particulartype of chain herein illustrated as operatively connecting the sashes to each other since, obviously, other flexible though non-elastic -might also be incorporated in numerous alternative structural embodiments. I Accordmgly, I expressly reserve the privilege of adoptlng all such legitimate changes inthe form, proportion, and relative arrangement of the several parts, as may be fairly considered within the spirit and scope of the invention as claimed.

- What I claim is 1. The combination with a window frame, of a pair of sashes hingedly connected to each other at one of their-ends, means for slidably and pivotally mounting the sashes at their other ends in the window frame for relative vertical movement, counterbalancing means common to both sashes to maintain thesashes in adjusted position, and a yieldable connection between said counter balancing means and one of the sashes to permit of an independent movement of said means with respect to said sash in the move ment of the sashes to open or closed position, said connection including an adjustable part movable relatively to the sash to control the efl'ectiveoperation of said counterbalancing means.

2. The combination with a window frame, ofa pair of sashes hingedly connected to each other at one of their ends, means for slidably and pivotally mounting the sashes at their other ends in thewindow frame for relative vertical. movement, a flexible,

non-elastic counterbalancing element having a fixed connection to one sash, and means yieldably connecting said element to the sash in the movement ofsaid sashesto open connecting elements might be substituted therefor without materially aflecting the practical efliciency ofthe or closed position, said means including a rod adjustable with respect to the sash and to which said counterbalancing element is connected.

3. The combination With a window frame,

of a pair of sashes hingedly connected to each other at one of their ends, slide mem bers vertically movable in the frame and having trunnions upon which the sashes are pivotally mounted at their other ends, flexible counterbalancing elements mounted in the frame and having fixed connections at one of their ends to the slide members for one sash, and yieldable means connecting said elements at their other ends to the slide members for the other sash, each of said yieldable means including a rod adjustably mounted inthe slide member and to which the flexible element is connected.

4. The combination with a window frame,

of a pair of sashes hingedly connected to] each other at one of their ends, slide members vertically movable in the frame and having trunnions upon which the sashes are pivotally mounted at their other ends, flexible counterbalancing elements mounted in c the frame and having fixed connections at one of their ends to the slide members for one'sash, and yieldingly held rods carried by the slide membersfor the other sash and longitudinally movable with respect thereto strip in spaced relation to each'of said stops,

of a pair of sashes hingedly connected to eachother at one of their ends, a weather strip secured to each of the side edges of each sash and coacting with the outer sides of the stops, slide members each having a channel portion movable along the inner side of the stop at one side of the frame, and an outwardly projecting flange having a pivot trunnion upon which one of the" ture. V V FRANK DUTOI-IER. 

